REFERENCES
Amatya, D., 1993. Forest Vegetation Analysis. Development Project,
GCP/NEP/048/NOR. Kathmandu: His Majesty’s Government of Nepal and Food
and Agriculture Organisation of the United Nations and possible
ecological implications. Braz J Biol. 64: 563–568.
Arnold, S. E., Le Comber, C. S., Chittka, L. 2009. Flower color
phenology in European grassland and woodland habitats, through the eyes
of pollinators. Israel Journal of Plant Sciences . 57, 211–230.
Aslam, S., Rafi, M. A., Zia, A. 2017. Non–Apis bees of family Apidae
(Hymenoptera) from Potohar region of Pakistan. Journal of
Entomology and Zoology Studies . 5, 6–12.
Bashir, M. A., Saeed, S., Sajjad, A., Khan, K. A., Ghramh, H. A.,
Shehzad, M. A., Ansari, M. J. 2019. Insect pollinator diversity in four
forested ecosystems of southern Punjab, Pakistan. Saudi journal of
biological sciences . 26(7), 1835–1842.
Bingham, C. T. 1897. The Fauna of British India, Including Ceylon
and Burma. Hymenoptera–Vol. 1. Wasps and Bees.https://doi.org/10.5962/bhl.title.100738.
Bodlah, I., Amjad, M., Bodlah, M.A. and Qayyum, A., 2016. First record
of two genera of Anthophorini and one genus of Melectini (Apinae:
Apidae: Hymenoptera) from Pothwar Punjab, Pakistan. Journal of
Entomology and Zoology Studies . 4:1031–1035.
Brunetti, E. 1923. Pipunculidae, Syrphidae, Conopidae, Oestridae.
Diptera. Vol. 3, xi + 424 pp., 6 pis. In [Shipley, A. E.] (Eds.),
The Fauna of British India, including Ceylon and Burma. Taylor and
Francis, London .
Cameron, S.A., Lozier, J.D., Strange, J.P., Koch, J.B., Cordes, N.,
Solter, L.F. and Griswold, T.L., 2011. Patterns of widespread decline in
North American bumble bees. Proceedings of the National Academy of
Sciences , 108 (2), pp.662–667.
Carreck, N.L. and Williams, I.H., 2002. Food for insect pollinators on
farmland: insect visits to flowers of annual seed
mixtures. Journal of Insect Conservation , 6 (1), pp.13–23.
Carvalheiro, L.G., Kunin, W.E., Keil, P., Aguirre‐Gutiérrez, J., Ellis,
W.N., Fox, R., Groom, Q., Hennekens, S., Van Landuyt, W., Maes, D. and
Van de Meutter, F., 2013. Species richness declines and biotic
homogenisation have slowed down for NW‐European pollinators and
plants. Ecology letters , 16 (7), pp.870–878.
Chaguthi, G. and Dyola, U., 2018. Insect Visitors of White Clover
(Trifolium Repens L) and Their Relation With Environmental Variables in
the Premises of Bhaktapur Multiple Campus, Nepal. Journal of
Institute of Science and Technology , 22 (2), pp.86–91.
Clarke, K.R. and Gorley, R.N., 2001. Primer V5 (Plymouth routines
in multivariate ecological research): user manual/tutorial . Primer–e.
Claussen, C.J. and Weipert, J., 2003. Zur Schwebfliegenfauna Nepals
(Insecta: Diptera: Syrphidae) unter besonderer Berücksichtigung
Westnepals. Biodiversität und Naturausstattung im Himalaya. Verein
der Freunde und Förderer des Naturkundemuseums Erfurt ev, Erfurt ,
pp.343–380.
Coe, R.L. 1964. Diptera from Nepal. Bulletin of the British Museum
of Natural History, Entomology . 15, 255–290.
Corbet, S.A., Williams, I.H. and Osborne, J.L., 1991. Bees and the
pollination of crops and wild flowers in the European
Community. Bee world , 72 (2), pp.47–59.
De Groot, R.S., Alkemade, R., Braat, L., Hein, L. and Willemen, L.,
2010. Challenges in integrating the concept of ecosystem services and
values in landscape planning, management and decision
making. Ecological complexity , 7 (3), pp.260–272.
Dirzo, R., Young, H.S., Galetti, M., Ceballos, G., Isaac, N.J. and
Collen, B., 2014. Defaunation in the
Anthropocene. science , 345 (6195), pp.401–406.
Erbar, C. and Leins, P., 2013. Nectar production in the pollen flower of
Anemone nemorosa in comparison with other Ranunculaceae and Magnolia
(Magnoliaceae). Organisms Diversity & Evolution , 13 (3),
pp.287–300.
Evans, L.C., Sibly, R.M., Thorbek, P., Sims, I., Oliver, T.H. and
Walters, R.J., 2020. The importance of including habitat–specific
behaviour in models of butterfly
movement. Oecologia , 193 (2), pp.249–259.
Everaars, J., Strohbach, M.W., Gruber, B. and Dormann, C.F., 2011.
Microsite conditions dominate habitat selection of the red mason bee
(Osmia bicornis, Hymenoptera: Megachilidae) in an urban environment: A
case study from Leipzig, Germany. Landscape and Urban
Planning , 103 (1), pp.15–23.
Fitzpatrick, Ú., Murray, T.E., Paxton, R.J., Breen, J., Cotton, D.,
Santorum, V. and Brown, M.J., 2007. Rarity and decline in bumblebees–a
test of causes and correlates in the Irish fauna. Biological
conservation , 136 (2), pp.185–194.
Franzén, M., Larsson, M. and Nilsson, S.G., 2009. Small local population
sizes and high habitat patch fidelity in a specialised solitary
bee. Journal of Insect Conservation , 13 (1), pp.89–95.
Fussell, M. and Corbet, S.A., 1992. Flower usage by bumble–bees: a
basis for forage plant management. Journal of Applied Ecology ,
pp.451–465.
Gathmann, A. and Tscharntke, T., 2002. Foraging ranges of solitary
bees. Journal of animal ecology , 71 (5), pp.757–764.
Ghorpadé, K. 1994. Diagnostic keys to new and known genera and species
of Indian subcontinent Syrphini (Diptera: Syrphidae). Colemania: Insect
Biosystematics. 3, 1–15.
Ghorpadé, K. 2016. Indian subcontinent species of Syritta Le
Peletier & Serville Diagnostic characters of eight species.
Ghorpadé, K., 1994. Diagnostic keys to new and known genera and species
of Indian subcontinent Syrphini (Diptera: Syrphidae). Colemania:
Insect Biosystematics , 3 , pp.1–15.
Gilbert, L.E., 1972. Pollen feeding and reproductive biology of
Heliconius butterflies. Proceedings of the National Academy of
Sciences , 69 (6), pp.1403–1407.
Gill, R.J., Baldock, K.C., Brown, M.J., Cresswell, J.E., Dicks, L.V.,
Fountain, M.T., Garratt, M.P., Gough, L.A., Heard, M.S., Holland, J.M.
and Ollerton, J., 2016. Protecting an ecosystem service: approaches to
understanding and mitigating threats to wild insect
pollinators. Advances in ecological research , 54 ,
pp.135–206.
Gittings, T., O’Halloran, J., Kelly, T. and Giller, P.S., 2006. The
contribution of open spaces to the maintenance of hoverfly (Diptera,
Syrphidae) biodiversity in Irish plantation forests. Forest
ecology and management , 237 (1–3), pp.290–300.
Greenleaf, S.S., Williams, N.M., Winfree, R. and Kremen, C., 2007. Bee
foraging ranges and their relationship to body
size. Oecologia , 153 (3), pp.589–596.
Hammer, Ø., Harper, D.A. and Ryan, P.D., 2001. PAST: Paleontological
statistics software package for education and data
analysis. Palaeontologia electronica , 4 (1), p.9.
Haslett, J.R., 1989. Adult feeding by holometabolous insects: pollen and
nectar as complementary nutrient sources for Rhingia campestris
(Diptera: Syrphidae). Oecologia , 81 (3), pp.361–363.
Hassan, M. A., Bodlah, I., Aihetasham, A., Bodlah, M. A., Hussain, K.
2019 First Record of Baccha maculata Walker, 1852 (Diptera: Syrphidae)
from the Pothwar Punjab, Pakistan. Punjab University Journal of
Zoology . 34, 133–135.
http://dx.doi.org/10.1016/j.landurbplan.2011.05.008.
Hassan, M.A., Bodlah, I., Ahmad, M., Kayani, A.R. and Mahmood, K., 2020.
First record of the genus Graptomyza Wiedemann, 1830 (Diptera:
Syrphidae) from Pakistan. The Journal of Animal and Plant
Sciences , 30 (2), pp.512–516.
Herrera, C.M., 1987. Components of pollinator” quality”: comparative
analysis of a diverse insect assemblage. Oikos , pp.79–90.
Hicks, D.M., Ouvrard, P., Baldock, K.C., Baude, M., Goddard, M.A.,
Kunin, W.E., Mitschunas, N., Memmott, J., Morse, H., Nikolitsi, M. and
Osgathorpe, L.M., 2016. Food for pollinators: quantifying the nectar and
pollen resources of urban flower meadows. PloS one , 11 (6),
p.e0158117.
Hudewenz, A., Klein, A.M., Scherber, C., Stanke, L., Tscharntke, T.,
Vogel, A., Weigelt, A., Weisser, W.W. and Ebeling, A., 2012. Herbivore
and pollinator responses to grassland management intensity along
experimental changes in plant species richness. Biological
Conservation , 150 (1), pp.42–52.
Irungbam, J.S., Huidrom, H. and Soibam, B.S., 2017. Range extension of
the Indian Tortoiseshell Aglais caschmirensis aesis (Fruhstorfer,
1912)(Lepidoptera: Nymphalidae) into the hills of Manipur,
India. Journal of threatened taxa , 9 (10), pp.10860–10864.
Janz, N., 2005. The relationship between habitat selection and
preference for adult and larval food resources in the polyphagous
butterfly Vanessa cardui (Lepidoptera: Nymphalidae). Journal of
Insect Behavior , 18 (6), pp.767–780.
Jauker, F., Diekoetter, T., Schwarzbach, F. and Wolters, V., 2009.
Pollinator dispersal in an agricultural matrix: opposing responses of
wild bees and hoverflies to landscape structure and distance from main
habitat. Landscape Ecology , 24 (4), pp.547–555.
Jennersten, O., 1984. Flower visitation and pollination efficiency of
some North European butterflies. Oecologia , 63 (1),
pp.80–89.
Kambach, S., Guerra, F., Beck, S.G., Hensen, I. and Schleuning, M.,
2013. Human–induced disturbance alters pollinator communities in
tropical mountain forests. Diversity , 5 (1), pp.1–14.
Kearns, C.A., 1992. Anthophilous fly distribution across an elevation
gradient. American Midland Naturalist , pp.172–182.
Kearns, C.A., Inouye, D.W. and Waser, N.M., 1998. Endangered mutualisms:
the conservation of plant–pollinator interactions. Annual review
of ecology and systematics , 29 (1), pp.83–112.
Kevan, P.G., Clark, E.A. and Thomas, V.G., 1990. Insect pollinators and
sustainable agriculture. American Journal of Alternative
Agriculture , 5 (1), pp.13–22.
Kovács‐Hostyánszki, A., Espíndola, A., Vanbergen, A.J., Settele, J.,
Kremen, C. and Dicks, L.V., 2017. Ecological intensification to mitigate
impacts of conventional intensive land use on pollinators and
pollination. Ecology Letters , 20 (5), pp.673–689.
Kremen, C., 2008. Crop pollination services from wild bees. Bee
pollination in agricultural ecosystems , pp.10–26.
Kühsel, S. and Blüthgen, N., 2015. High diversity stabilizes the thermal
resilience of pollinator communities in intensively managed
grasslands. Nature communications , 6 (1), pp.1–10.
Kumari, P., Kumar, N.R., Sidhu, A.K. and Chandra, K., 2018. Taxonomical
and behavioural studies on Megachile conjuncta (Fabricius)(Hymenoptera:
Megachilidae: Cressoniella).
Larson, B.M.H., Kevan, P.G. and Inouye, D.W., 2001. Flies and flowers:
taxonomic diversity of anthophiles and pollinators. The Canadian
Entomologist , 133 (4), pp.439–465.
LeBuhn, G., Griswold, T., Minckley, R., Droege, S., Roulston, T.A.,
Cane, J., Parker, F., Buchmann, S., Tepedino, V., Williams, N. and
Kremen, C., 2003. A standardized method for monitoring bee
populations–the bee inventory (BI) plot. Accessed , 16 ,
p.15.
Lepš, J. and Šmilauer, P., 2003. Multivariate analysis of
ecological data using CANOCO . Cambridge university press.
Lieftinck, M.A., 1966. Notes on some anthophorine bees, mainly from the
Old World (Apoidea). Tijdschrift voor Entomologie , 109 (6),
pp.125–161.
Losey, J.E. and Vaughan, M., 2006. The economic value of ecological
services provided by insects. Bioscience , 56 (4),
pp.311–323.
Mani, M. S. 1962. Introduction to high altitude Entomology insect life
above the timber–line in the north–west Himalaya (No. 595.70954 M3).
Masters, J.A. and Emery, S.M., 2015. The showy invasive plant Ranunculus
ficaria facilitates pollinator activity, pollen deposition, but not
always seed production for two native spring ephemeral
plants. Biological Invasions , 17 (8), pp.2329–2337.
McKinney, A.M. and Goodell, K., 2010. Shading by invasive shrub reduces
seed production and pollinator services in a native
herb. Biological Invasions , 12 (8), pp.2751–2763.
Meyer, B., Jauker, F. and Steffan–Dewenter, I., 2009. Contrasting
resource–dependent responses of hoverfly richness and density to
landscape structure. Basic and Applied Ecology , 10 (2),
pp.178–186.
Moquet, L., Laurent, E., Bacchetta, R. and Jacquemart, A.L., 2018.
Conservation of hoverflies (Diptera, Syrphidae) requires complementary
resources at the landscape and local scales. Insect Conservation
and Diversity , 11 (1), pp.72–87.
Ngat, T. T., Minh, N. P., Lam, T. X., Thi, N., Lien, P. 2017. Studies of
the Genus Thyreus Panzer ( Hymenoptera : Apidae : Apinae ) with Six
New Records from Vietnam. 9, 227–236.
Nielsen, A., Steffan–Dewenter, I., Westphal, C., Messinger, O., Potts,
S.G., Roberts, S.P., Settele, J., Szentgyörgyi, H., Vaissière, B.E.,
Vaitis, M. and Woyciechowski, M., 2011. Assessing bee species richness
in two Mediterranean communities: importance of habitat type and
sampling techniques. Ecological research , 26 (5),
pp.969–983.
Oksanen, J., Blanchet, F.G., Kindt, R., Legendre, P., Minchin, P.R.,
O’hara, R.B., Simpson, G.L., Solymos, P., Stevens, M.H.H., Wagner, H.
and Oksanen, M.J., 2013. Package ‘vegan’. Community ecology
package, version , 2 (9), pp.1–295.
Oliver, T., Roy, D.B., Hill, J.K., Brereton, T. and Thomas, C.D., 2010.
Heterogeneous landscapes promote population stability. Ecology
letters , 13 (4), pp.473–484.
Pinheiro, L.A., Torres, L.M., Raimundo, J. and Santos, S.A., 2015.
Effects of pollen, sugars and honeydew on lifespan and nutrient levels
of Episyrphus balteatus. BioControl , 60 (1), pp.47–57.
Pollard, E. and Yates, T.J., 1994. Monitoring butterflies for
ecology and conservation: the British butterfly monitoring scheme .
Springer Science & Business Media.
Potts, S.G., Biesmeijer, J.C., Kremen, C., Neumann, P., Schweiger, O.
and Kunin, W.E., 2010. Global pollinator declines: trends, impacts and
drivers. Trends in ecology & evolution , 25 (6),
pp.345–353.
Potts, S.G., Vulliamy, B., Dafni, A., Ne’eman, G. and Willmer, P., 2003.
Linking bees and flowers: how do floral communities structure pollinator
communities?. Ecology , 84 (10), pp.2628–2642.
Proesmans, W., Bonte, D., Smagghe, G., Meeus, I. and Verheyen, K., 2019.
Importance of forest fragments as pollinator habitat varies with season
and guild. Basic and applied ecology , 34 , pp.95–107.
Reemer, M., 2005. Saproxylic hoverflies benefit by modern forest
management (Diptera: Syrphidae). Journal of insect
conservation , 9 (1), pp.49–59.
Rundlöf, M., Nilsson, H. and Smith, H.G., 2008. Interacting effects of
farming practice and landscape context on bumble bees. Biological
conservation , 141 (2), pp.417–426.
Sankararaman, H., Daniel, J. A., Manickavasagam, S. and Pennards, G.,
2020. First record of two interesting genera of hover flies (Diptera:
Syrphidae) in South India. Journal of Insect Biodiversity ,14 (2), pp.54–63.
Sengupta, J., Naskar, A., Maity, A., Hazra, S., Sarkar, N.K. and
Banerjee, D., 2017. Hover Flies (Diptera: Syrphidae) from Darjeeling
Himalaya—A Part of Indo–Burmese Hotspot. Indian Journal of
Entomology , 79 (3), pp.336–353.
Sharp, M.A., Parks, D.R. and Ehrlich, P.R., 1974. Plant resources and
butterfly habitat selection. Ecology , 55 (4), pp.870–875.
Sjödin, N.E., Bengtsson, J. and Ekbom, B., 2008. The influence of
grazing intensity and landscape composition on the diversity and
abundance of flower‐visiting insects. Journal of Applied
Ecology , 45 (3), pp.763–772.
Smith, C. 2011 Illustrated checklists of Nepal’s butterflies. Mujpuria
Publication, Craftman Press, Bangkok, Thailand.
SNNP, 2017. Shivapuri–Nagarjun National Park and Buffer Zone,
Management Plan. Kathmandu: Shivapuri–Nagarjun Park Office, Panimuhan,
Kathmandu, Nepal.
Stanley, D.A., 2013. Pollinators and Pollination in Changing
Agricultural Landscapes: Investigating the Impacts of Bioenergy
Crops (Doctoral dissertation, Trinity College Dublin).
Subedi, C.K., Rokaya, M.B., Münzbergová, Z., Timsina, B., Gurung, J.,
Chettri, N., Baniya, C.B., Ghimire, S.K. and Chaudhary, R.P., 2020.
Vascular plant diversity along an elevational gradient in the Central
Himalayas, western Nepal. Folia Geobotanica , 55 (2),
pp.127–140.
Subhan, F. 2016. Taxonomic study of Syrphidae (Diptera) of
Northern dry mountains region of Pakistan (Doctoral dissertation, The
University of Agriculture, Peshawar–Pakistan).
Sutherland, W.J., 1996. 11 The twenty commonest surveying
sins. Ecological Census Techniques: A Handbook , p.317.
Sydenham, M.A., Häusler, L.D., Moe, S.R. and Eldegard, K., 2016.
Inter‐assemblage facilitation: The functional diversity of
cavity‐producing beetles drives the size diversity of cavity‐nesting
bees. Ecology and evolution , 6 (2), pp.412–425.
Szigeti, V., Kőrösi, Á., Harnos, A., Nagy, J. and Kis, J., 2016,
September. Comparing two methods for estimating floral resource
availability for insect pollinators in semi–natural habitats.
In Annales de la Société entomologique de France (NS) (Vol. 52,
No. 5, pp. 289–299). Taylor & Francis.
Tadauchi, O. and Matsumura, T., 2007. The genus Andrena collected from
Nepal (Hymenoptera, Andrenidae) with redescriptions of some types of
Andrena described from North India. Esakia , 47 , pp.1–20.
Tiple, A.D., Deshmukh, V.P. and Dennis, R.L., 2005. Factors influencing
nectar plant resource visits by butterflies on a university campus:
implications for conservation. Nota
lepidopterologica , 28 (3/4), p.213.
Van Swaay, C.C., Cuttelod, A., Collins, S., Maes, D., Munguira, M.L.,
Šašić, M., Settele, J., Verovnik, R., Verstrael, T., Warren, M. and
Wiemers, M., 2010. European red list of butterflies.
Vanbergen, A.J. and Initiative, T.I.P., 2013. Threats to an ecosystem
service: pressures on pollinators. Frontiers in Ecology and the
Environment , 11 (5), pp.251–259.
VanEngelsdorp, D., Hayes Jr, J., Underwood, R.M. and Pettis, J., 2008. A
survey of honey bee colony losses in the US, fall 2007 to spring
2008. PloS one , 3 (12), p.e4071.
Vulliamy, B., G. Potts, S. and G. Willmer, P., 2006. The effects of
cattle grazing on plant‐pollinator communities in a fragmented
Mediterranean landscape. Oikos , 114 (3), pp.529–543.
Warren, M.S., Hill, J.K., Thomas, J.A., Asher, J., Fox, R., Huntley, B.,
Roy, D.B., Telfer, M.G., Jeffcoate, S., Harding, P. and Jeffcoate, G.,
2001. Rapid responses of British butterflies to opposing forces of
climate and habitat change. Nature , 414 (6859), pp.65–69.
Warren, S.D., Harper, K.T. and Booth, G.M., 1988. Elevational
distribution of insect pollinators. American Midland Naturalist ,
pp.325–330.
Weibull, A.C., Bengtsson, J. and Nohlgren, E., 2000. Diversity of
butterflies in the agricultural landscape: the role of farming system
and landscape heterogeneity. Ecography , 23 (6),
pp.743–750.
Westphal, C., Bommarco, R., Carré, G., Lamborn, E., Morison, N.,
Petanidou, T., Potts, S.G., Roberts, S.P., Szentgyörgyi, H., Tscheulin,
T. and Vaissière, B.E., 2008. Measuring bee diversity in different
European habitats and biogeographical regions. Ecological
monographs , 78 (4), pp.653–671.
Wickham, H., Chang, W. and Wickham, M.H., 2016. Package
‘ggplot2’. Create Elegant Data Visualisations Using the Grammar of
Graphics. Version , 2 (1), pp.1–189.
Widhiono, I., Sudiana, E. and SUCIANTO, E.T., 2016. Insect pollinator
diversity along a habitat quality gradient on Mount Slamet, Central
Java, Indonesia. Biodiversitas Journal of Biological
Diversity , 17 (2).
Willcox, B.K., Howlett, B.G., Robson, A.J., Cutting, B., Evans, L.,
Jesson, L., Kirkland, L., Jean–Meyzonnier, M., Potdevin, V., Saunders,
M.E. and Rader, R., 2019. Evaluating the taxa that provide shared
pollination services across multiple crops and regions. Scientific
reports , 9 (1), pp.1–10.
Williams, P.H., Ito, M., Matsumura, T. and Kudo, I., 2010. The
bumblebees of the Nepal Himalaya (Hymenoptera: Apidae). Insecta
matsumurana. New series: journal of the Faculty of Agriculture Hokkaido
University, series entomology. , 66 , pp.115–151.
Willmer, P.G., 1983. Thermal constraints on activity patterns in
nectar‐feeding insects. Ecological Entomology , 8 (4),
pp.455–469.
Wojcik, V., 2021. Pollinators: Their Evolution, Ecology, Management, and
Conservation. In Arthropods . IntechOpen.